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Welcome to SpaceBook - your textbook for everything in astronomy.

1. Finding Your Way Around the Sky

Learn how to navigate the night sky.

2. The Solar System

Learn about the planets in our solar system and how they formed.

3. Life Cycle of Stars

Learn about the lives of stars, and their use in measuring distances.

4. Exoplanets

Learn about extrasolar planets, and the methods used to find them.

5. Galaxies

Learn about galaxy types, what they contain, and their history of discovery.

6. Cosmology

Find out about the beginning, evolution, and future of the universe.

7. The Nature of Light

Discover how we learn about the universe through light.

8. Magnitudes & Measuring Distance

Discover key concepts for understanding distance and scale in the universe.

9. How Telescopes Work

Understand the capabilities and limitations of telescopes.

10. Astrobiology

Learn about life on Earth, and the possibilities for life elsewhere.